table! {
    user (id) {
        id -> Integer,
        name -> Nullable<Varchar>,
        age -> Nullable<Integer>,
        passwd -> Nullable<Varchar>,
    }
}

table! {
    users (id) {
        id -> Integer,
        name -> Varchar,
        age -> Integer,
        passwd -> Varchar,
    }
}

allow_tables_to_appear_in_same_query!(
    user,
    users,
);